This is probably the best advice of all regarding temperatures. You’ve only got to read here how the English and the South Floridians (for example) have totally different ideas about that’s cold and what’s warm.
If hosts can supply a couple of fans and an electric space heater then most people should be satisfied. I expect to freeze when I go to the UK (even in summer) and when English family visit me here in Florida they expect to swelter and sweat. Part of the fun of travelling is tha fact that things aren’t like they are at home,